In season three, Arrow has become a public hero in Starling City following Slade Wilson's defeat. Queen Consolidated is sold to wealthy businessman, scientist and aspiring hero Ray Palmer (Brandon Routh). Oliver struggles to bring his family back together, an old enemy returns,Arrow Season 6 DVD and Oliver becomes embroiled in a conflict with Ra's al Ghul (Matthew Nable). After a tragic event and a rocky start, Laurel sets out to follow in Sara's footsteps as the Black Canary. Diggle struggles with his new role as a family man, as Oliver no longer wants John in the field after the birth of his child. Meanwhile, Felicity starts a new career as Vice President of Palmer Technologies (formerly Queen Consolidated). In flashbacks,Arrow Season 6 Oliver is forced to work for A.R.G.U.S. leader Amanda Waller (Cynthia Addai-Robinson) in Hong Kong; he and Tatsu Yamashiro (Rila Fukushima) work together to stop corrupt general Matthew Shrieve (Marc Singer) from unleashing a deadly pathogen, which Ra's al Ghul eventually acquires in the present.